Riders of the & be aware that FASTRACK is back in place starting later tonight & lasting through the week. Here are the complete details:

MTA New York City Transit is bringing FASTRACK back to the Lexington Avenue Line. Beginning Monday, June 11, the 4, 5 and 6 lines will be shut down from 10 p.m. until 5 a.m., suspending all Lexington Avenue Line service between Grand Central-42nd Street and Atlantic Avenue in both directions for four consecutive weeknights.

Signals, tracks, tunnels, structures and stations must all be kept is proper working condition, an incredibly difficult task in a system where trains run 24 hours a day, every day. Providing maintenance for over 2,600 switches, 12,000 train control signals, more than 700 miles of track and 468 stations is an enormous challenge. However, by shutting down a section of a subway line, we are able to work more efficiently and provide a much safer environment for our transit workers.

By not working on in-service tracks, transit employees are safer and avoid the interruptions of repeatedly having to “clear up” for trains going by. During FASTRACK, hundreds of workers inspect track, repair and replace rails, and perform power and signal maintenance. During this time, we will also be able to repair platform edges, wall tiles and replace light bulbs and fixtures in addition to power washing some of the closed stations. Where needed, old paint is removed and fresh paint applied.

When a line segment is closed at night, customers can expect to add about 20 minutes to their usual travel time. Alternative transportation options will be detailed in announcements and posters on trains, in stations and on selected buses; brochures will be available in both English and Spanish. Information will also be available on the web at www.mta.info and through social media, email and text alerts.